Freestyle long rods

[rodry]

Long rods like cr500 (144mm) in a stock stroke crank with a big bore kit likes group k 845, and a big spacer. Its a good set up?

 

[freestylegeek]

Long rods are good for higher RPM, and are normally used on a stroker motor to compensate for the longer stroke. They also reduce the "critical rod angle" on the piston pin (reducing piston and bore wear). On a stock stroke motor, there wouldn't be a need/benefit for the longer rods.

 

[kevbo]

144mm rods on a 68mm stroke is getting beyond even high rpm designs. There would be a lot of crankcase volume to fill to maintain good intake draw before the pipe is in resonance. Stock 125mm rods good for more rpm than our pumps can use.